Electronic musical keyboard



FIG. 1 is a top plan view of an electronic musical keyboard showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof. 

The ornamental design for an electronic musical keyboard, as shown. 